Answer:
Step-by-step explanation:
(7,105) , (4,60)
slope = (y2 - y1) / (x2 - x1)
slope = (60 - 105) / (4 - 7) = -45/-3 = 15
y = mx + b
slope(m) = 15
(4,60)...x = 4 and y = 60
now we sub and find b, the y int
60 = 15(4) + b
60 = 60 + b
60 - 60 = b
0 = b
so ur equation is : y = 15x <===
how many pies must be made to make 165... so we sub 165 in for y in the equation and solve for x, the number of pies needed
y = 15x
165 = 15x
165/15 = x
11 = x <=== she would have to sell 11 pies
